Doctor Boyle explains NaPro FertilityCare. Three couples give an account of their personal experience with treatment. NaPro can work in cases of reduced ovarian reserve, Low AMH, Male factor infertility, endometriosis and polycystic ovaries, recurrent miscarriage – to name a few. Over 200 couples have now conceived even after previous failed IVF and NaPro has successfully treated couples with up to 10 previous miscarriages.